Acompound containing the elements c, h, n, & o is analyzed. when a 1.2359 g sample is burned in excess oxygen, 2.241 g of co2(g) is formed. the combustion analysis also showed that the sample contained 0.0648 g of h.
(i) determine the mass, in grams, of c in the 1.2359 g sample
(ii) when the compound is analyzed for n content only, the mass percent of n is found to be 28.84%.
(iii) determine the mass, in grams, of o in the original 1.2359 g sample of the compound.
(iv) determine the empirical formula of the compound.

nacl or sodium chloride is an ionic compound. this is because an ionic compound pertains to a compound that consists of positively and negatively charged ions. in this case, na (sodium) has a tendency to lose one electron when it reacts with with other atoms, so the resulting sodium ion contains 11 protons and 10 electrons, thus making it positively charged (na+), when chlorine reacts, it usually gains one electron to form an ion called chloride, thus making it negatively charged ( since the ions are oppositely charged, they attract.

4d^55s^1 ( third choice)